EP0144748A2 - Imidazolinones, process for their preparation and their use in plant ptotection - Google Patents

Imidazolinones, process for their preparation and their use in plant ptotection Download PDF

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Publication number
EP0144748A2
EP0144748A2 EP84113259A EP84113259A EP0144748A2 EP 0144748 A2 EP0144748 A2 EP 0144748A2 EP 84113259 A EP84113259 A EP 84113259A EP 84113259 A EP84113259 A EP 84113259A EP 0144748 A2 EP0144748 A2 EP 0144748A2
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Prior art keywords
alkyl
halogen
formula
phenyl
substituted
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German (de)
French (fr)
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EP0144748A3 (en
Inventor
Roland Dr. Schmierer
Reinhard Dr. Handte
Rainer Dr. Liebl
Hilmar Dr. Mildenberger
Klaus Dr. Bauer
Hermann Dr. Bieringer
Helmut Dr. Bürstell
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Hoechst AG
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Hoechst AG
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
    • C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
    • C07D233/66—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D233/70—One oxygen atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Definitions

  • the cyclization of the amides (II) can e.g. with phosphorus pentachloride, advantageously in the presence of a solvent which is inert under the reaction conditions.
  • a solvent which is inert under the reaction conditions. Examples of the latter are: toluene, xylene, chloroform or phosphorus oxychloride.
  • the reaction temperature is not critical and can be varied between -10 ° C and + 150 ° C. Reaction temperatures between 0 and 100 ° C. are particularly advantageous.
  • the hydrochlorides of the imidazolinones (I) are primarily obtained. According to usual methods, e.g. by reaction with sodium carbonate or sodium hydrogen carbonate, the free bases can be produced therefrom.
  • the cyclization can also take place in the presence of strong organic or inorganic acids, such as sulfuric acid or p-toluenesulfonic acid, with simultaneous removal of the water formed at temperatures from 0 ° C. to 150 ° C.
  • the reaction can be carried out particularly advantageously in such a way that the water formed is separated off by azeotropic distillation with a solvent such as toluene, xylene or chloroform. After neutralization, the products can be isolated using customary methods.
  • the compounds according to the invention are tautomeric, so that they can be in one of the two forms (I a) / (I b) or as a mixture of (I a) and (I b). These isomers also occur in the derivatives with Z ⁇ H.
  • Both the acid addition salts and the N-oxides of the compounds of the formula (I) are readily accessible in a generally known manner, the latter, for example, by reaction with peroxides or H 2 O 2 .
  • the amides of the formula (II) can easily be obtained from the aminoamides (III) and the correspondingly substituted carboxylic acid derivatives (IV).
  • the present compounds according to the invention have excellent herbicidal activity against a broad spectrum of economically important mono- and dicotyledonous harmful plants. Perennial root weeds that are difficult to control are also well captured by the active ingredients. It does not matter whether the substances are applied in pre-sowing, pre-emergence or post-emergence spraying. If the compounds according to the invention are applied to the earth's surface before germination, the emergence of the seedlings is not completely prevented. The weeds grow to the cotyledon stage, but then stop growing and eventually die completely after 3 weeks.
  • the active ingredients When the active ingredients are applied to the green parts of the plant in the post-emergence process, there is also a drastic growth stop very quickly after the treatment and the weed plants remain in the growth stage at the time of application or die completely after a certain time, so that one for the crop plants U harmful nkrautkonkurrenz very early and can be permanently eliminated through the use of new compositions of the invention.
  • the compounds according to the invention have excellent herbicidal activity against monocotyledonous and dicotyledon weeds, crop plants of economically important crops such as, for. B. wheat, barley, rye, rice, maize, sugar beet, cotton and soy only insignificantly or even not harmed.
  • the substances according to the invention thus have excellent selectivity in crop plants and, for these reasons, are very suitable for controlling unwanted vegetation in agricultural crops.
  • the present invention therefore also relates to herbicidal and growth-regulating compositions which comprise the active compound of the formula (I) in addition to customary formulation auxiliaries.
  • the agents according to the invention can be used as wettable powders, emulsifiable concentrates, sprayable solutions, dusts, mordants, dispersions, granules or microgranules in the usual preparations.
  • Wettable powders are preparations which are uniformly dispersible in water and which, in addition to the active ingredient, in addition to, if appropriate, a diluent or inert substance, are also wetting agents, for.
  • ligninsulfonic acid sodium 2,2'-di-naphthylmethane-6,6'-disulfonic acid sodium, dibutylnaphthalenesulfonic acid sodium or oleoylmethyl tauric acid sodium.
  • the production takes place in the usual way, for. B. by grinding and mixing the components.
  • Emulsifiable concentrates can e.g. B. by dissolving the active ingredient in an inert organic solvent, e.g. Example butanol, cyclohexanone, dimethylformamide, xylene or else higher-boiling aromatics or K ohlenwasserstof- fen with addition of one or more emulsifiers her.- are provided.
  • an inert organic solvent e.g. Example butanol, cyclohexanone, dimethylformamide, xylene or else higher-boiling aromatics or K ohlenwasserstof- fen with addition of one or more emulsifiers her.- are provided.
  • the solvent content can also be omitted entirely or in part.
  • alkyl-arylsulfonic acid calcium salts such as Ca-dodecylbenzenesulfonate or nonionic emulsifiers
  • alkyl-arylsulfonic acid calcium salts such as Ca-dodecylbenzenesulfonate or nonionic emulsifiers
  • fatty acid polyglycol esters alkyl aryl polyglycol ethers, fatty alcohol polyglycol ethers, propylene oxide-ethylene oxide condensation products, fatty alcohol propylene oxide or ethylene oxide polyorbityl ester polyorbityl acid fatty acid products, ethylene oxide polyorbityl ester fatty acid products, ethylene oxide polyorbityl ester fatty acid products, ethylene oxide polyorbityl ester fatty acid products, ethylene oxide polyorbityl ester fatty acid products, ethylene oxide polyorbityl ester fatty acid products, ethylene oxide polyorbityl ester fatty acid products, ethylene oxide
  • Dusts can be obtained by grinding the active ingredient with finely divided, solid substances, e.g. B. talc, natural clays such as kaolin, bentonite, pyrophillite or diatomaceous earth.
  • finely divided, solid substances e.g. B. talc, natural clays such as kaolin, bentonite, pyrophillite or diatomaceous earth.
  • Granules can either be produced by spraying the active ingredient onto adsorbable, granulated inert material or by applying active ingredient concentrates by means of binders, e.g. As polyvinyl alcohol, sodium polyacrylic acid or mineral oils on the surface of carriers such as sand, kaolinite or granulated inert material. Suitable active ingredients can also be granulated in the manner customary for the production of fertilizer granules, if desired in a mixture with fertilizers.
  • binders e.g. As polyvinyl alcohol, sodium polyacrylic acid or mineral oils on the surface of carriers such as sand, kaolinite or granulated inert material.
  • Suitable active ingredients can also be granulated in the manner customary for the production of fertilizer granules, if desired in a mixture with fertilizers.
  • the active ingredient concentration in wettable powders is e.g. B. about 10 to 90 wt .-%, the rest of 100 wt .-% consists of conventional formulation components. In the case of emulsifiable concentrates, the active substance concentration can be approximately 10 to 80% by weight. Dust-like formulations usually contain 5 to 20 wt .-% of active ingredient, sprayable solutions about 2 to 20 wt .-%. In the case of granules, the active ingredient content depends in part on whether the active compound is in liquid or solid form and which granulation aids, fillers, etc. are used.
  • the active ingredient formulations mentioned optionally contain the customary adhesives, wetting agents, dispersants, emulsifiers, penetrants, solvents, fillers or carriers.
  • the concentrates present in the commercial form are optionally diluted in a conventional manner, for. B. with wettable powders, emulsifiable concentrates, dispersions and sometimes also with microgranules using water. Dusty and granular Preparations and sprayable solutions are usually no longer diluted with other inert substances before use.
  • the application rates of active ingredient of the formula (I) vary, depending on the indication, between 0.01 and 10 kg of active ingredient / ha.
  • a wettable powder which is readily dispersible in water is obtained by mixing 25 parts by weight of active compound, 64 parts by weight of kaolin-containing quartz as an inert substance, 10 parts by weight of lignosulfonic acid potassium and 1 part by weight of oleoylmethyl tauric acid sodium as wetting and dispersing agent and grinding in a pin mill.
  • a dispersion concentrate which is readily dispersible in water is obtained by mixing 20 parts by weight of active compound with 6 parts by weight of alkylphenol polyglycol ether (for example (R) Triton X 207 from Rohm & Haas Co.), 3 parts by weight.
  • alkylphenol polyglycol ether for example (R) Triton X 207 from Rohm & Haas Co.
  • An emulsifiable concentrate is obtained from 15 parts by weight of active ingredient, 75 parts by weight of cyclohexanone as a solvent and 10 parts by weight of ethylated nonylphenol (10 AeO) as an emulsifier.
  • Seeds or rhizome pieces of mono- and dicotyledon weeds were placed in clay soil in plastic pots (0 9 cm) and covered with soil.
  • the mulsionskonzentrate as wettable powders or as E formulated compounds of the invention were applied as aqueous suspensions or emulsions on the surface.
  • the amount of water applied per pot corresponded to the equivalent of 600 1 / ha.
  • the test pots were placed in the greenhouse and the test plants were cultivated under good growth conditions (temperature: 23 ⁇ 1 ° C; relative humidity 60-80%). After approximately 3 weeks, the damage to the plants was assessed visually. Untreated controls served as a comparison.

Abstract

Imidazolinone der Formel <IMAGE> worin A N oder C-R<4>; B Halogenalkyl, Alkoxymethyl, Cyanmethyl oder Thiocyanatomethyl; X Alkyl; Y Alkyl, Cycloalkyl, Alkenyl, Phenyl oder Benzyl; oder X und Y zusammen mit C eine Spiro-cycloalkylgruppe; Z H, (subst.) Alkyl, Alkenyl, Propargyl, eine Alkyl-, Carbonester- oder Sulfoestergruppe; R¹-R<4> H, Halogen, Alkyl, Alkoxy, Alkoxycarbonyl, Halogenalkyl, NO2, CN, (subst.) Phenoxy, (subst.) Phenyl oder je zwei benachbarte zusammen den Rest -CH=CH-CH-CH- bedeuten, sind wirksame Herbizide und Wachstumsregulatoren.Imidazolinones of the formula <IMAGE> wherein A N or C-R <4>; B haloalkyl, alkoxymethyl, cyanomethyl or thiocyanatomethyl; X alkyl; Y is alkyl, cycloalkyl, alkenyl, phenyl or benzyl; or X and Y together with C represent a spiro-cycloalkyl group; Z H, (subst.) Alkyl, alkenyl, propargyl, an alkyl, carboxylic ester or sulfoester group; R¹-R <4> H, halogen, alkyl, alkoxy, alkoxycarbonyl, haloalkyl, NO2, CN, (subst.) Phenoxy, (subst.) Phenyl or two adjacent groups together mean the radical -CH = CH-CH-CH- , are effective herbicides and growth regulators.

Description

Die'vorliegende Erfindung betrifft neue, herbizid wirksame Imidazolinone der Formel (I)

Figure imgb0001
in welcher

  • A N oder C-R4;
  • B Halogen-(C1-C2)alkyl wobei unter Halogen Fluor, Chlor und Brom, vorzugsweise Fluor und Chlor zu verstehen sind, (C1-C4) Alkoxymethyl, Cyanmethyl und Thiocyanatomethyl;
  • X (C1-C4)Alkyl;
  • Y (C1- C6)Alkyl, Cyclo(C3-C6)alkyl, (C2-C4) Alkenyl , (C2-C4)Alkinyl, Phenyl oder Benzyl;
  • X und Y zusammen mit dem Kohlenstoffatom, an das sie gebunden sind, eine gegebenenfalls durch -CH3 substituierte Spirocyclo(C3-C6)alkylgruppe;
  • Z Wasserstoff, (C1-C4)Alkyl, welches durch (C1-C4)Alkoxycarbonyl substituiert sein kann, (C3-C4)Alkenyl, Propargyl, -CO-R5 oder -SO2-R6 ;
    • R1, R2, R3 und R4 unabhängig voneinander Wasserstoff, Halogen, (C1-C4)Alkyl, (C1-C6)Alkoxy, (C1-C6) Alkoxycarbonyl, Halogen-(C1-C2)alkyl, Nitro, Cyano, Phenoxy und Phenyl, das gegebenenfalls mit (C1-C4)Alkyl, (C1-C4)Alkoxy oder Halogen substituiert sein kann, wobei jeweils zwei o-ständige Reste R1, R2, R 3 oder R4 auch gemeinsam die Gruppierung -CH=CH-CH=CH bilden können;
    • R5 (C1-C12)Alkyl, das gegebenenfalls mit bis zu zwei (C1-C4)Alkoxygruppen oder mit bis zu drei Halogen substituiert ist; Phenyl, das mit bis zu zwei Halogenatomen, einer Methyl-, einer Nitro- oder einer Methoxygruppe substituiert sein kann; Cyclo(C3-C7)alkyl, (C1-C4)Alkoxy, (C1-C4)Alkoxycarbonyl, Benzyloxy, Phenoxy oder -NR7R8, insbesondere (C1-C12) Alkyl ;
    • R6 (C1-C4)Alkyl, CF3, CCl3, Phenyl, Chlorphenyl oder Methylphenyl;
    • R 7 Wasserstoff oder (C1-C4)Alkyl; und
    • R8 (C1-C4)Alkyl, Phenyl, Chlorphenyl, Methylphenyl, Amino, Mono-oder Di(C1-C4)alkylamino, bedeuten, sowie deren optischen Isomere (falls X ‡.Y), ihre Säureadditionssalze und N-Oxide (für den Fall, daß A für N steht).
The present invention relates to new, herbicidally active imidazolinones of the formula (I)
Figure imgb0001
 in which
  • AN or CR 4 ;
  • B halogen (C 1 -C 2 ) alkyl, where halogen means fluorine, chlorine and bromine, preferably fluorine and chlorine, (C 1 -C 4 ) alkoxymethyl, cyanomethyl and thiocyanatomethyl;
  • X (C 1 -C 4 ) alkyl;
  • Y (C 1 -C 6 ) alkyl, cyclo (C3-C6) alkyl, (C 2 -C 4 ) alkenyl, (C 2 -C 4 ) alkynyl, phenyl or benzyl;
  • X and Y together with the carbon atom to which they are attached represent an optionally -CH 3 substituted spirocyclo (C3-C6) alkyl group;
  • Z is hydrogen, (C 1 -C 4 ) alkyl, which can be substituted by (C 1 -C 4 ) alkoxycarbonyl, (C 3 -C 4 ) alkenyl, propargyl, -CO-R 5 or -SO 2 -R 6 ;
    • R 1 , R 2 , R 3 and R 4 independently of one another are hydrogen, Halogen, (C 1 -C 4 ) alkyl, (C 1 -C 6 ) alkoxy, (C 1 -C 6 ) alkoxycarbonyl, halogen (C 1 -C 2 ) alkyl, nitro, cyano, phenoxy and phenyl, which are optionally can be substituted with (C 1 -C 4 ) alkyl, (C 1 -C 4 ) alkoxy or halogen, where in each case two o-radicals R 1 , R 2 , R 3 or R 4 together also form the group --CH = CH -C can form H = CH;
    • R 5 (C 1 -C 12 ) alkyl which is optionally substituted with up to two (C 1 -C 4 ) alkoxy groups or with up to three halogen; Phenyl which can be substituted with up to two halogen atoms, one methyl, one nitro or one methoxy group; C y c l o (C 3 -C 7 ) alkyl, (C 1 -C 4 ) alkoxy, (C 1 -C 4 ) alkoxycarbonyl, benzyloxy, phenoxy or -NR 7 R 8 , in particular (C 1 -C 12 ) Alkyl;
    • R 6 (C 1 -C 4 ) alkyl, CF3 , CCl 3 , phenyl, chlorophenyl or methylphenyl;
    • R 7 is hydrogen or (C 1 -C 4 ) alkyl; and
    • R 8 is (C 1 -C 4 ) alkyl, phenyl, chlorophenyl, methylphenyl, amino, mono- or di (C 1 -C 4 ) alkylamino, and their optical isomers (if X ‡ .Y), their acid addition salts and N -Oxides (if A is N).

Man erhält die erfindungsgemäßen Verbindungen, indem man die Amide der Formel (II)

Figure imgb0002
durch Wasserabspaltung cyclisiert und gewünschtenfalls die erhaltenen Verbindungen mit Z = Wasserstoff durch Alkylierung, Acylierung, Sulfonierung, Oxidation oder Salzbildung in andere Verbindungen der Formel (I) überführt.The compounds according to the invention are obtained by using the amides of the formula (II)
Figure imgb0002
 cyclized by elimination of water and, if desired, the compounds obtained with Z = hydrogen converted into other compounds of the formula (I) by alkylation, acylation, sulfonation, oxidation or salt formation.

Die Cyclisierung der Amide (II) kann z.B. mit Phosphorpentachlorid, vorteilhaft in Gegenwart eines unter den Reaktionsbedingungen inerten Lösemittels erfolgen. Als Beispiele für letztere seien genannt: Toluol, Xylol, Chloroform oder Phosphoroxychlorid. Die Reaktionstemperatur ist unkritisch und kann zwischen -10°C und +150°C variiert werden. Besonders vorteilhaft sind Reaktionstemperaturen zwischen 0 und 100°C. Man erhält dabei primär die Hydrochloride der Imidazolinone (I). Nach üblichen Methoden, z.B. durch.Umsetzung mit Natriumcarbonat oder Natriumhydrogencarbonat, lassen sich daraus die freien Basen herstellen.The cyclization of the amides (II) can e.g. with phosphorus pentachloride, advantageously in the presence of a solvent which is inert under the reaction conditions. Examples of the latter are: toluene, xylene, chloroform or phosphorus oxychloride. The reaction temperature is not critical and can be varied between -10 ° C and + 150 ° C. Reaction temperatures between 0 and 100 ° C. are particularly advantageous. The hydrochlorides of the imidazolinones (I) are primarily obtained. According to usual methods, e.g. by reaction with sodium carbonate or sodium hydrogen carbonate, the free bases can be produced therefrom.

Die Cyclisierung kann ebenfalls in Gegenwart starker organischer oder anorganischer Säuren, wie Schwefelsäure oder p-Toluolsulfonsäure, unter gleichzeitiger Abtrennung des gebildeten Wassers bei Temperaturen von 0°C bis 150°C erfolgen. Besonders vorteilhaft läßt sich die Reaktion so führen, daß das gebildete Wasser durch Azeotropdestillation mit einem Lösemittel, wie Toluol, Xylol oder Chloroform, abgetrennt wird. Nach Neutralisation können die Produkte nach üblichen Methoden isoliert werden.The cyclization can also take place in the presence of strong organic or inorganic acids, such as sulfuric acid or p-toluenesulfonic acid, with simultaneous removal of the water formed at temperatures from 0 ° C. to 150 ° C. The reaction can be carried out particularly advantageously in such a way that the water formed is separated off by azeotropic distillation with a solvent such as toluene, xylene or chloroform. After neutralization, the products can be isolated using customary methods.

Die Imidazolinone der Formel (I) (Z = Wasserstoff) werden dabei im allgemeinen in guten Ausbeuten erhalten. Dies war für die halogenalkylsubstituierten Vertreter (B = Halogenalkyl) überraschend, da vielmehr angenommen werden mußte, daß sich die Imidazolinone (I), auf Grund der sterisch sehr günstigen Anordnung der Halogenalkylgruppe, zum basischen Imidazolinstickstoff unter Halogenwasserstoff abspaltung zersetzen würden. Die Cyclisierungsprodukte der Formel (I) mit Z = Wasserstoff können in einfacher Weise nach an sich bekannten Verfahren mit Alkylierungsmitteln, (Methyljodid, Dimethylsulfat) oder Acylierungsmitt-eln (wie Säurechloriden) in Gegenwart von Basen, oder mit Isocyanaten umgesetzt werden.The imidazolinones of the formula (I) (Z = hydrogen) are generally obtained in good yields. This was surprising for the haloalkyl-substituted representatives (B = haloalkyl), since it had to be assumed that the imidazolinones (I), owing to the sterically very favorable arrangement of the haloalkyl group, became the basic imidazoline nitrogen under hydrogen halide would decompose. The cyclization products of the formula (I) with Z = hydrogen can be reacted in a simple manner by processes known per se with alkylating agents (methyl iodide, dimethyl sulfate) or acylating agents (such as acid chlorides) in the presence of bases, or with isocyanates.

Die erfindungsgemäßen Verbindungen sind, wenn Z für Wasserstoff steht, tautomer, so daß sie in einer der beiden Formen (I a)/(I b) oder als Gemisch von (I a) und (I b) vorliegen können. Diese Isomeren treten auch bei den Derivaten mit Z ‡ H auf.

Figure imgb0003
When Z is hydrogen, the compounds according to the invention are tautomeric, so that they can be in one of the two forms (I a) / (I b) or as a mixture of (I a) and (I b). These isomers also occur in the derivatives with Z ‡ H.
Figure imgb0003

Die Definitionen der Formel (I) umfassen stets beide isomeren Strukturen der Formel (I a) und (I b).The definitions of the formula (I) always include both isomeric structures of the formulas (I a) and (I b).

Sowohl die Säureadditionssalze, als auch die N-Oxide der Verbindungen der Formel (I) sind auf allgemein bekanntem Weg gut zugänglich, letztere z.B. durch Umsetzung mit Peroxiden oder H2O2.Both the acid addition salts and the N-oxides of the compounds of the formula (I) are readily accessible in a generally known manner, the latter, for example, by reaction with peroxides or H 2 O 2 .

Die Amide der Formel (II) lassen sich leicht aus den Aminoamiden (III) und den entsprechend substituierten Carbonsäurederivaten (IV) erhalten. Als Derivate geeignet sind z.B. Säurechloride oder Kohlensäurealkylester (R9 = Cl, -O-COO-Alkyl).

Figure imgb0004
The amides of the formula (II) can easily be obtained from the aminoamides (III) and the correspondingly substituted carboxylic acid derivatives (IV). Suitable derivatives are, for example, acid chlorides or carbonic acid alkyl esters (R 9 = Cl, -O-COO-alkyl).
Figure imgb0004

Die vorliegenden erfindungsgemäßen Verbindungen weisen eine ausgezeichnete herbizide Wirksamkeit gegen ein breites Spektrum wirtschaftlich wichtiger mono- und dikotyler Schadpflanzen auf. Auch schwer bekämpfbare perennierende Wurzelunkräuter werden durch die Wirkstoffe gut erfaßt. Dabei ist es gleichgültig, ob die Substanzen in Vorsaat-, Vorauflauf- oder Nachauflaufspritzung ausge-bracht werden. Werden die erfindungsgemäßen Verbindungen vor dem Keimen auf die Erdoberfläche appliziert, so wird das Auflaufen der Keimlinge nicht vollständig verhindert. Die Unkräuter wachsen bis zum Keimblattstadium heran, stellen jedoch dann ihr Wachstum ein und sterben schließlich nach 3 Wochen vollkommen ab.The present compounds according to the invention have excellent herbicidal activity against a broad spectrum of economically important mono- and dicotyledonous harmful plants. Perennial root weeds that are difficult to control are also well captured by the active ingredients. It does not matter whether the substances are applied in pre-sowing, pre-emergence or post-emergence spraying. If the compounds according to the invention are applied to the earth's surface before germination, the emergence of the seedlings is not completely prevented. The weeds grow to the cotyledon stage, but then stop growing and eventually die completely after 3 weeks.

Bei Applikation der Wirkstoffe auf die grünen Pflanzenteile im Nachauflaufverfahren tritt ebenfalls sehr rasch nach der Behandlung ein drastischer Wachstumsstop ein und die Unkrautpflanzen bleiben in dem zum Applikationszeitpunkt vorhandenen Wachstumsstadium stehen oder sterben nach einer gewissen Zeit ganz ab, so daß auf diese Weise eine für die Kulturpflanzen schädliche Unkrautkonkurrenz sehr früh und nachhaltig durch den Einsatz der neuen erfindungsgemäßen Mittel beseitigt werden kann. Obgleich die erfindungsgemäßen Verbindungen eine ausgezeichnete herbizide Aktivität gegenüber mono- und dikotylen Unkräutern aufweisen, werden Kulturpflanzen wirtschaftlich bedeutender Kulturen wie z. B. Weizen, Gerste, Roggen, Reis, Mais, Zuckerrübe, Baumwolle und Soja nur unwesentlich oder gar nicht geschädigt. Die erfindungsgemäßen Substanzen besitzen somit ausgezeichnete Selektivität bei Kulturpflanzen und eignen sich aus diesen Gründen sehr gut zur Bekämpfung von unerwünschtem Pflanzenwuchs in landwirtschaftlichen Nutzungspflanzungen..When the active ingredients are applied to the green parts of the plant in the post-emergence process, there is also a drastic growth stop very quickly after the treatment and the weed plants remain in the growth stage at the time of application or die completely after a certain time, so that one for the crop plants U harmful nkrautkonkurrenz very early and can be permanently eliminated through the use of new compositions of the invention. Although the compounds according to the invention have excellent herbicidal activity against monocotyledonous and dicotyledon weeds, crop plants of economically important crops such as, for. B. wheat, barley, rye, rice, maize, sugar beet, cotton and soy only insignificantly or even not harmed. The substances according to the invention thus have excellent selectivity in crop plants and, for these reasons, are very suitable for controlling unwanted vegetation in agricultural crops.

Darüberhinaus weisen sie wachstumsregulatorische Eigenschaften bei Kulturpflanzen auf. Sie greifen regulierend in den pflanzene-igenen Stoffwechsel ein und können damit zur Ernteerleichterung wie z.B. durch Auslösen von Desikkation, Abzession und Wuchsstauchung eingesetzt werden. Desweiteren eignen sich auch zur generellen Steuerung und Hemmung von unerwünschtem vegetativen Wachstum, ohne dabei die Pflanzen abzutöten. Eine Hemmung des vegetativen Wachstums spielt bei vielen mono-und dikolylen Kulturen eine große Rolle, da das Lagern hierdurch verringert oder völlig verhindert werden kann. Gegenstand der vorliegenden Erfindung sind daher auch herbizide und wachstumsregulatorische Mittel, welche den Wirkstoff der Formel (I) neben üblichen Formulierungshilfsmitteln enthalten.In addition, they have growth-regulating properties in crop plants. They intervene to regulate the plant's own metabolism and can thus be used to facilitate harvesting, for example by triggering desiccation, abscess and stunted growth. Furthermore, they are also suitable for general control and inhibition of undesired vegetative growth without killing the plants. An inhibition of vegetative growth plays a major role in many mono- and dicolylene cultures, since storage can thereby be reduced or completely prevented. The present invention therefore also relates to herbicidal and growth-regulating compositions which comprise the active compound of the formula (I) in addition to customary formulation auxiliaries.

Die erfindungsgemäßen Mittel können als Spritzpulver, emulgierbare Konzentrate, versprühbare Lösungen, Stäubemittel, Beizmittel, Dispersionen, Granulate oder Mikrogranulate in den üblichen Zubereitungen angewendet werden. Spritzpulver sind in Wasser gleichmäßig dispergierbare Präparate, die neben dem Wirkstoff außer gegebenenfalls einem Verdünnungs- oder Inertstoff noch Netzmittel, z. B. polyoxethylierte Alkylphenole, polyoxethylierte Fettalkohole, Alkyl- oder Alkylphenylsulfonate und Dispergiermittel, z. B. ligninsulfonsaures Natrium, 2,2'-di- naphthylmethan-6,6'-disulfonsaures Natrium, dibutylnaphthalinsulfonsaures Natrium oder auch oleoylmethyltaurinsaures Natrium enthalten. Die Herstellung erfolgt in üblicher Weise, z. B. durch Mahlen und Vermischen der Komponenten.The agents according to the invention can be used as wettable powders, emulsifiable concentrates, sprayable solutions, dusts, mordants, dispersions, granules or microgranules in the usual preparations. Wettable powders are preparations which are uniformly dispersible in water and which, in addition to the active ingredient, in addition to, if appropriate, a diluent or inert substance, are also wetting agents, for. B. polyoxethylated alkylphenols, polyoxethylated fatty alcohols, alkyl or alkylphenyl sulfonates and dispersants, e.g. B. ligninsulfonic acid sodium, 2,2'-di-naphthylmethane-6,6'-disulfonic acid sodium, dibutylnaphthalenesulfonic acid sodium or oleoylmethyl tauric acid sodium. The production takes place in the usual way, for. B. by grinding and mixing the components.

Emulgierbare Konzentrate können z. B. durch Auflösen des Wirkstoffes in einem inerten organischen Lösungsmittel, z. B. Butanol, Cyclohexanon, Dimethylformamid, Xylol oder auch höhersiedenden Aromaten oder Kohlenwasserstof- fen unter Zusatz von einem oder mehreren Emulgatoren her.- gestellt werden. Bei flüssigen Wirkstoffen kann der Lösungsmittelanteil auch ganz oder teilweise entfallen. Als Emulgatoren können beispielsweise verwendet werden: Alkyl-arylsulfonsaure Calciumsalze wie Ca-dodecylbenzolsulfonat oder nichtionische Emulgatoren wie Fettsäurepolyglykolester, Alkyl-arylpolyglykolether, Fettalkoholpolyglykolether, Propylenoxid-Ethylenoxid-Kondensationsprodukte, Fettalkohol-Propylenoxid-Ethylenoxid-Kondensationsprodukte, Alkylpolyglykolether, Sorbitanfettsäureester, Polyoxethylensorbitanfettsäureester oder Polyoxethylensorbitester.Emulsifiable concentrates can e.g. B. by dissolving the active ingredient in an inert organic solvent, e.g. Example butanol, cyclohexanone, dimethylformamide, xylene or else higher-boiling aromatics or K ohlenwasserstof- fen with addition of one or more emulsifiers her.- are provided. In the case of liquid active ingredients, the solvent content can also be omitted entirely or in part. Examples of emulsifiers that can be used are: alkyl-arylsulfonic acid calcium salts such as Ca-dodecylbenzenesulfonate or nonionic emulsifiers such as fatty acid polyglycol esters, alkyl aryl polyglycol ethers, fatty alcohol polyglycol ethers, propylene oxide-ethylene oxide condensation products, fatty alcohol propylene oxide or ethylene oxide polyorbityl ester polyorbityl acid fatty acid products, ethylene oxide polyorbityl ester fatty acid products, ethylene oxide polyorbityl ester fatty acid products, ethylene oxide polyorbityl ester fatty acid products, ethylene oxide polyorbityl ester fatty acid products, ethylene oxide polyorbityl ester fatty acid products,

Stäubemittel kann man durch Vermahlen des Wirkstoffes mit fein verteilten, festen Stoffen, z. B. Talkum, natürlichen Tonen wie Kaolin, Bentonit, Pyrophillit oder Diatomeenerde erhalten.Dusts can be obtained by grinding the active ingredient with finely divided, solid substances, e.g. B. talc, natural clays such as kaolin, bentonite, pyrophillite or diatomaceous earth.

Granulate können entweder durch Verdüsen des Wirkstoffes auf adsorptionsfähiges, granuliertes Inertmaterial hergestellt werden oder durch Aufbringen von Wirkstoffkonzentraten mittels Bindemitteln, z. B. Polyvinylalkohol, polyacrylsaurem Natrium oder auch Mineralölen auf die Oberfläche von Trägerstoffen wie Sand, Kaolinite oder von granuliertem Inertmaterial.Auch können geeignete Wirkstoffe in der für die Herstellung von Düngemittelgranulaten üblichen Weise, gewünschtenfalls in Mischung mit Düngemitteln, granuliert werden.Granules can either be produced by spraying the active ingredient onto adsorbable, granulated inert material or by applying active ingredient concentrates by means of binders, e.g. As polyvinyl alcohol, sodium polyacrylic acid or mineral oils on the surface of carriers such as sand, kaolinite or granulated inert material. Suitable active ingredients can also be granulated in the manner customary for the production of fertilizer granules, if desired in a mixture with fertilizers.

In Spritzpulvern beträgt die Wirkstoffkonzentration z. B. etwa 10 bis 90 Gew.-%, der Rest zu 100 Gew.-% besteht aus üblichen Formulierungsbestandteilen. Bei emulgierbaren Konzentraten kann die Wirkstoffkonzentration etwa 10 bis 80 Gew.-% betragen. Staubförmige Formulierungen enthalten meistens 5 bis 20 Gew.-% an Wirkstoff, versprühbare Lösungen etwa 2 bis 20 Gew.-%. Bei Granulaten hängt der Wirkstoffgehalt zum Teil davon ab, ob die wirksame Verbindung flüssig oder fest vorliegt und welche Granulierhilfsmittel, Füllstoffe usw. verwendet werden.The active ingredient concentration in wettable powders is e.g. B. about 10 to 90 wt .-%, the rest of 100 wt .-% consists of conventional formulation components. In the case of emulsifiable concentrates, the active substance concentration can be approximately 10 to 80% by weight. Dust-like formulations usually contain 5 to 20 wt .-% of active ingredient, sprayable solutions about 2 to 20 wt .-%. In the case of granules, the active ingredient content depends in part on whether the active compound is in liquid or solid form and which granulation aids, fillers, etc. are used.

Daneben enthalten die genannten Wirkstofformulierungen gegebenenfalls die jeweils üblichen Haft-, Netz-, Dispergier-, Emulgier-, Penetrations-, Lösungsmittel, Füll- oder Trägerstoffe.In addition, the active ingredient formulations mentioned optionally contain the customary adhesives, wetting agents, dispersants, emulsifiers, penetrants, solvents, fillers or carriers.

Zur Anwendung werden die in handelsüblicher Form vorliegenden Konzentrate gegebenenfalls in üblicher Weise verdünnt, z. B. bei Spritzpulvern, emulgierbaren Konzentraten, Dispersionen und teilweise auch bei Mikrogranulaten mittels Wasser. Staubförmige und granulierte Zubereitungen sowie versprühbare Lösungen werden vor der Anwendung üblicherweise nicht mehr mit weiteren inerten Stoffen verdünnt.For use, the concentrates present in the commercial form are optionally diluted in a conventional manner, for. B. with wettable powders, emulsifiable concentrates, dispersions and sometimes also with microgranules using water. Dusty and granular Preparations and sprayable solutions are usually no longer diluted with other inert substances before use.

Die Aufandmengen an Wirkstoff der Formel (I)variieren je nach Indikation zwischen 0,01 und 10 kg Wirkstoff/ha.The application rates of active ingredient of the formula (I) vary, depending on the indication, between 0.01 and 10 kg of active ingredient / ha.

Auch Mischungen oder Mischformulierungen mit anderen Wirkstoffen, wie z. B. Insektiziden, Akariziden, Herbiziden, Düngemitteln, Wachstumsregulatoren oder Fungiziden sind gegebenenfalls möglich.Mixtures or mixed formulations with other active ingredients, such as. B. insecticides, acaricides, herbicides, fertilizers, growth regulators or fungicides are optionally possible.

Nachstehend seien einige Formulierungsbeispiele aufgeführt:

  • Ein Stäubemittel wird erhalten, indem man 10 Gewichtsteile Wirkstoff und 90 Gewichtsteile Talkum oder Inertstoff mischt und in einer Schlagmühle zerkleinert.
Here are some examples of formulation:
  • A dusting agent is obtained by mixing 10 parts by weight of active ingredient and 90 parts by weight of talc or inert material and comminuting them in a hammer mill.

Ein in Wasser leicht dispergierbares, benetzbares Pulver wird erhalten, indem man 25 Gewichtsteile Wirkstoff, 64 Gewichtsteile kaolinhaltigen Quarz als Inertstoff, 10 Gewichtsteile ligninsulfonsaures Kalium und 1 Gewichtsteil oleoylmethyltaurinsaures Natrium als Netz- und Dispergiermittel mischt und in einer Stiftmühle mahlt.A wettable powder which is readily dispersible in water is obtained by mixing 25 parts by weight of active compound, 64 parts by weight of kaolin-containing quartz as an inert substance, 10 parts by weight of lignosulfonic acid potassium and 1 part by weight of oleoylmethyl tauric acid sodium as wetting and dispersing agent and grinding in a pin mill.

Ein in Wasser leicht dispergierbares Dispersionskonzentrat wird erhalten, indem man 20 Gewichtsteile Wirkstoff mit 6 Gewichtsteilen Alkylphenolpolyglykolether (z.B. (R)Triton X 207 der Rohm & Haas Co.), 3 Gew.-Tl. Isotridecanol polyglykolether (8 AeO) und 71 Gewichtsteilen paraffinischem Mineralöl (Siedebereich z. B. ca. 255 bis über 377 °C) mischt und in einer Reibkugelmühle auf eine Feinheit von unter 5 Mikron vermahlt.A dispersion concentrate which is readily dispersible in water is obtained by mixing 20 parts by weight of active compound with 6 parts by weight of alkylphenol polyglycol ether (for example (R) Triton X 207 from Rohm & Haas Co.), 3 parts by weight. Isotridecanol polyglycol ether (8 AeO) and 71 parts by weight of paraffinic mineral oil (boiling range e.g. approx. 255 to over 377 ° C) are mixed and ground in a friction ball mill to a fineness of less than 5 microns.

Ein emulgierbares Konzentrat wird erhalten aus 15 Gewichtsteilen Wirkstoff, 75 Gewichtsteilen Cyclohexanon als Lösungsmittel und 10 Gewichtsteilen oxethyliertes Nonylphenol (10 AeO) als Emulgator.An emulsifiable concentrate is obtained from 15 parts by weight of active ingredient, 75 parts by weight of cyclohexanone as a solvent and 10 parts by weight of ethylated nonylphenol (10 AeO) as an emulsifier.

Die folgenden Beispiele dienen der weiteren Erläuterung der Erfindung:

  • A. Herstellungsbeispiele
The following examples serve to further explain the invention:
  • A. Manufacturing examples

Beispiel 1 AusgangsstoffExample 1 2-Trlfluormethylbenzoesäure-N-2-(2-carbamoyl-3-methyl) butylamid2-Trifluoromethylbenzoic acid-N-2- (2-carbamoyl-3-methyl) butylamide

Zu einer Lösung aus 10,3g(0,079 mol) 2-Methylvalinamid und 8,7 g (0,086 mol) Triethylamin in 50 ml abs. Methylenchlorid tropft man bei 0 - 5°C 15 g (0,072 mol) 2-Trifluormethylbenzoylchlorid zu. Nach 1 h Reaktionszeit bei Raumtemperatur wird auf 500 ml 0,5 n Natriumhydrogencarbonatlösung gegossen, nachgerührt und abgesaugt. Nach dem Trocknen erhält man 18,3 g (85 % der Theorie) 2-Trifluormethylbenzoesäure-N-2-(2-carbamoyl-3-methyl)-butylamid als farbloser Feststoff vom Fp. 124 bis 126°C.To a solution of 10.3 g (0.079 mol) of 2-methylvalinamide and 8.7 g (0.086 mol) of triethylamine in 50 ml abs. Methylene chloride is added dropwise at 0 - 5 ° C 15 g (0.072 mol) of 2-trifluoromethylbenzoyl chloride. After a reaction time of 1 h at room temperature, the mixture is poured onto 500 ml of 0.5N sodium hydrogen carbonate solution, stirred and suctioned off. After drying, 18.3 g (85% of theory) of 2-trifluoromethylbenzoic acid-N-2- (2-carbamoyl-3-methyl) -butylamide are obtained as a colorless solid, mp. 124 to 126 ° C.

Beispiel 2Example 2 5-Isopropyl-5-methyl-4-oxo-2-(2-trifluormethylphenyl)-2-imidazolin5-isopropyl-5-methyl-4-oxo-2- (2-trifluoromethylphenyl) -2-imidazoline

18,3 g (0,060 mol) 2-Trifluormethylbenzoesäure-N-2-(2- carbamoyl-3-methyl)-butylamid werden in 100 ml Phosphoroxychlorid gelöst und bei Raumtemperatur portionsweise mit 14,0 g (0,067 mol) Phosphorpentachlorid versetzt. Nach 5 h bei Raumtemperatur wird im Vakuum eingedampft, mit Eis hydrolysiert, mit Natriumhydrogencarbonat neutralisiert und die Lösung 2mal mit je 100 ml Essigester extrahiert. Nach dem Trocknen über Natriumsulfat und Eindampfen erhält man 15,5 g (91 % der Theorie) 5-Isopropyl-5-methyl-4-oxo-2-(2-trifluormethylphenyl)-2-imidazolin als farblosen Feststoff vom Fp. 109 bis 110°C.18.3 g (0.060 mol) of 2-trifluoromethylbenzoic acid-N-2- ( 2 -carbamoyl-3-methyl) butylamide are dissolved in 100 ml of phosphorus oxychloride, and 14.0 g (0.067 mol) of phosphorus pentachloride are added in portions at room temperature. After 5 h at room temperature, the mixture is evaporated in vacuo, hydrolyzed with ice, neutralized with sodium hydrogen carbonate and the solution is extracted twice with 100 ml of ethyl acetate. After drying over sodium sulfate and Evaporation gives 15.5 g (91% of theory) of 5-isopropyl-5-methyl-4-oxo-2- (2-trifluoromethylphenyl) -2-imidazoline as a colorless solid, mp 109 to 110 ° C.

Beispiel 3Example 3 2-(2-Dichlormethylphenyl)-5-5-diethyl-4-oxo-1-(4-toluolsulfonyl)-2-imidäzolin2- (2-dichloromethylphenyl) -5-5-diethyl-4-oxo-1- (4-toluenesulfonyl) -2-imidazoline

Zu 4,5 g (0,015 mol) 2-(2-Dichlormethylphenyl)-5-5-diethyl-4-oxo-2-imidazolin in 30 ml abs. Pyridin gibt man bei 0 - 5°C 3,2 g (0,017 mol) 4-Toluolsulfonsäurechlorid zu, läßt 1 d bei Raumtemperatur stehen, gießt auf 500 ml Wasser, extrahiert 2mal mit je 100 ml Toluol, wäscht die org. Phase lmal mit 2 n Natronlauge und 1mal mit Wasser. Nach dem Trocknen (Natriumsulfat) und Ein-Eindampfen wird der Rückstand chromatographisch (Kieselgel, LM Petrolether-Essigester 7 : 3) gereinigt. Man erhält 4,4 g (66 % der Theorie) 2-(2-Dichlormethylphenyl) -5-diethyl-4-oxo-1-(4-toluolsulfonyl)-2-imidazolin als farbloser Feststoff vom Fp. 139 - 140°C.

Figure imgb0005
Figure imgb0006
 To 4.5 g (0.015 mol) of 2- (2-dichloromethylphenyl) -5-5-diethyl-4-oxo-2-imidazoline in 30 ml abs. Pyridine is added at 0 - 5 ° C 3.2 g (0.017 mol) of 4-toluenesulfonic acid chloride, left for 1 day at room temperature, poured onto 500 ml of water, extracted twice with 100 ml of toluene, the org. Phase once with 2N sodium hydroxide solution and once with water. After drying (sodium sulfate) and evaporation, the residue is purified by chromatography (silica gel, LM petroleum ether-ethyl acetate 7: 3). 4.4 g (66% of theory) of 2- (2-dichloromethylphenyl) -5-diethyl-4-oxo-1- (4-toluenesulfonyl) -2-imidazoline are obtained as a colorless solid, mp. 139-140 ° C. .
Figure imgb0005
Figure imgb0006

B. Biologische BeispieleB. Biological examples Prüfung auf herbizide WirkungTesting for herbicidal activity

Die Schädigung der Unkrautpflanzen bzw. die Kulturpflanzenverträglichkeit wurde in einem Schlüssel von 0 - 5 bonitiert. Dabei bedeutet

  • 0 = ohne Wirkung (Schaden)
  • 1 = 0 - 20 % Wirkung
  • 2 = 20 - 40 % Wirkung
  • 3 = 40 - 60 % Wirkung
  • 4 = 60 - 80 % Wirkung
  • 5 = 80 - 100 % Wirkung
The damage to the weed plants and the compatibility with the crop plants was rated in a key of 0-5. Here means
  • 0 = without effect (damage)
  • 1 = 0 - 20% effect
  • 2 = 20 - 40% effect
  • 3 = 40 - 60% effect
  • 4 = 60 - 80% effect
  • 5 = 80 - 100% effect

1. Wirkung gegen Unkräuter1. Effect against weeds

Samen bzw. Rhizomstücke mono- und dikotyler Unkräuter wurden in Lehmerde in Plastiktöpfen (0 9 cm) ausgelegt und mit Erde abgedeckt. Die als benetzbare Pulver bzw. als Emulsionskonzentrate formulierten erfindungsgemäßen Verbindungen wurden in Form wäßriger Suspensionen bzw. Emulsionen auf die Erdoberfläche appliziert. Die Wasseraufwandmenge pro Topf entsprach dabei umgerechnet 600 1/ha. Nach der Behandlung wurden die Versuchstöpfe im Gewächshaus aufgestellt und die Versuchspflanzen unter guten Wachstumsbedingungen (Temperatur: 23 ± 1 °C; rel. Luftfeuchte 60 - 80 %) kultiviert. Nach ca. 3 Wochen wurde die Pflanzenschädigung visuell bonitiert. Als Vergleich dienten dabei unbeharidelte Kontrollen.Seeds or rhizome pieces of mono- and dicotyledon weeds were placed in clay soil in plastic pots (0 9 cm) and covered with soil. The mulsionskonzentrate as wettable powders or as E formulated compounds of the invention were applied as aqueous suspensions or emulsions on the surface. The amount of water applied per pot corresponded to the equivalent of 600 1 / ha. After the treatment, the test pots were placed in the greenhouse and the test plants were cultivated under good growth conditions (temperature: 23 ± 1 ° C; relative humidity 60-80%). After approximately 3 weeks, the damage to the plants was assessed visually. Untreated controls served as a comparison.

Wie aus den Werten der Tabelle 2 hervorgeht, weisen die erfindungsgemäßen Verbindungen im Vorauflaufverfahren eine zum Teil ausgezeichnete herbizide Wirksamkeit gegen wirtschaftlich bedeutende mono-und dikotyle Schadpflanzen auf.As can be seen from the values in Table 2, show the compounds according to the invention have a partially excellent herbicidal activity against economically important mono- and dicotyledonous harmful plants in the pre-emergence process.

In ähnlicher Weise wurden verschiedene Unkräuter in Töpfen im Gewächshaus bis zum 3-6-Blattstadium herangezogen und dann im Nachauflauf verfahren mit den erfindungsgemäßen Verbindungen (formuliert als Spritzpulver) behandelt. 4 Wochen später wurden die Versuchspflanzen im Vergleich zu unbehandelten Kontrollpflanzen visuell bonitiert, indem die Schädigung geschätzt wurde.Similarly, various weeds were grown in pots in the greenhouse to the 3-6 leaf stage and then post-emergence with the compounds according to the invention (formulated as wettable powder). 4 weeks later, the test plants were visually rated in comparison to untreated control plants by estimating the damage.

Die Ergebnisse des Versuchs (Tabelle 3) belegen die guten herbiziden Eigenschaften der Verbindungen.

Figure imgb0007
Figure imgb0008
Figure imgb0009
Figure imgb0010
Figure imgb0011
 The results of the test (Table 3) demonstrate the good herbicidal properties of the compounds.
Figure imgb0007
Figure imgb0008
Figure imgb0009
Figure imgb0010
Figure imgb0011

Prüfung auf wachstumsregulierende WirkungTest for growth-regulating effects 1. Wuchshemraun bei Getreide1. Growth hemra in cereals

In Schalenversuchen im Gewächshaus wurden junge Getreidepflanzen (Weizen, Gerste und Roggen) im 3-Blattstadium mit den zu prüfenden Verbindungen in den in Tabelle 4 angegebenen Wirkstoffkonzentrationen (kg/ha) tropfnaß gespritzt. Nachdem die unbehandelten Kontrollpflanzen eine Wuchshöhe von etwa 55 cm erreicht hatten, wurde bei allen Pflanzen der Zuwachs gemessen und die Wuchshemmung in % des Zuwachses der Kontrollpflanzen berechnet. Es wurde außerdem die phytotoxische Wirkung der Verbindungen beobachtet. Die Ergebnisse sind in Tabelle 4 zusammengefaßt. Bei der Angabe der Wuchshemmung bedeuten 100 % den Stillstand des Wachstums und 0 % ein Wachstum entsprechend dem der unbehandelten Kontrollpflanzen.

Figure imgb0012
In trials in the greenhouse, young cereal plants (wheat, barley and rye) in the 3-leaf stage were sprayed to runoff point with the compounds to be tested in the active compound concentrations (kg / ha) given in Table 4. After the untreated control plants had reached a height of about 55 cm, the growth was measured for all plants and the growth inhibition was calculated as a percentage of the growth of the control plants. The phytotoxic effects of the compounds were also observed. The results are summarized in Table 4 quantified. When stating the inhibition of growth, 100% means that growth has stopped and 0% means growth corresponding to that of the untreated control plants.
Figure imgb0012

2. Wuchshemmung an Buschbohnen2. Inhibition of growth on bush beans

10 - 15 cm Buschbohnen wurden mit den Wirkstoffzubereitungen tropfnaß bespritzt. Nach 2 Wochen wird der Zuwachs gemessen und die Wuchshemmung in % des Zuwachses der Kontrollpflanzen berechnet. Die Ergeb- nisse sind in Tabelle 5 zusammengefaßt.

Figure imgb0013
10 - 15 cm bush beans were sprayed with the active ingredient preparations to runoff. After 2 weeks, the growth is measured and the growth inhibition is calculated in% of the growth of the control plants. The resulting - nisse are summarized in Table 5 below.
Figure imgb0013

Claims (9)

1. Imidazolinone der Formel (I)
Figure imgb0014
in welcher A N oder C-R4; B Halogen-(C1-C2)alkyl wobei unter Halogen Fluor, Chlor und Brom, vorzugsweise Fluor und Chlor zu verstehen sind, (Cl-C4) Alkoxymethyl, Cyanmethyl und Thiocyanatomethyl; X (C1-C4) Alkyl; Y (C1- C6) Alkyl, Cyclo(C3-C6)alkyl, (C2-C4)Alkenyl, (C2-C4)Alkinyl, Phenyl oder Benzyl; X und Y zusammen mit dem Kohlenstoffatom, an das sie gebunden sind, eine gegebenenfalls durch -CH3 substituierte Spirocyclo(C3-C6)alkylgruppe; Z Wasserstoff, (C1-C4) Alkyl, welches durch (C1-C4 )Alkoxycarbonyl substituiert sein kann, (C3-C4)Alkenyl, Propargyl, -CO-R5 oder -SO2-R6; R1, R 2, R3 und R4 unabhängig voneinander Wasserstoff, Halogen, (Cl-C4)Alkyl, (C1-C6)Alkoxy, (Cl-C 6) Alkoxycarbonyl, Halogen-(C1-C2)alkyl, Nitro, Cyano, Phenoxy und Phenyl, das gegebenenfalls mit (C1-C4)Alkyl, (Cl-C4)Alkoxy oder Halogen substituiert sein kann, wobei jeweils zwei o-ständige Reste R1, - R2, R 3 oder R4 auch gemeinsam die Gruppierung -CH=CH-CH=CH bilden können; R5 (C1-C12)Alkyl, das gegebenenfalls mit bis zu zwei (C1-C4)Alkoxygruppen oder mit bis zu drei Halogen substituiert ist; Phenyl, das mit bis zu zwei Halogenatomen, einer Methyl-, einer Nitro- oder einer Methoxygruppe substituiert sein kann; Cyclo(C3-C7)alkyl, (C1-C4)Alkoxy, (C1-C4)Alkoxycarbonyl, Benzyloxy, Phenoxy oder -NR7R , insbesondere (C1-C12)Alkyl; R6 (C1-C4) Alkyl, CF3, CCl3, Phenyl, Chlorphenyl oder Methylphenyl; R7 Wasserstoff oder (C1-C4)Alkyl; und R8 (C1-C4)Alkyl, Phenyl, Chlorphenyl, Methylphenyl, Amino, Mono- oder Di(C1-C4)alkylamino, bedeuten, sowie deren optischen Isomere (falls X ‡ Y), ihre Säureadditionssalze und N-Oxide (für den Fall, daß A für N steht). 1. Imidazolinones of the formula (I)
Figure imgb0014
 in which AN or CR 4 ; B halogen (C 1 -C 2 ) alkyl, where halogen means fluorine, chlorine and bromine, preferably fluorine and chlorine, (C 1 -C 4 ) alkoxymethyl, cyanomethyl and thiocyanatomethyl; X (C 1 -C 4 ) alkyl; Y (C 1 -C 6 ) alkyl, cyclo (C 3 -C 6 ) alkyl, (C 2 -C 4 ) alkenyl, (C 2 -C 4 ) alkynyl, phenyl or benzyl; X and Y together with the carbon atom to which they are attached represent an optionally -CH 3 substituted spirocyclo (C 3 -C 6 ) alkyl group; Z is hydrogen, (C 1 -C 4 ) alkyl, which can be substituted by (C 1 -C 4 ) alkoxycarbonyl, (C 3 -C 4 ) alkenyl, propargyl, -CO-R 5 or -SO 2 -R 6 ; R 1 , R 2 , R 3 and R 4 independently of one another are hydrogen, Halogen, (C l -C 4) alkyl, (C 1 -C 6) -alkoxy Al, (C l - C 6) alkoxycarbonyl, halo (C 1 -C 2) alkyl, nitro, cyano, phenoxy and phenyl which may optionally be substituted with (C 1 -C 4 ) alkyl, (C 1 -C 4 ) alkoxy or halogen, where in each case two o-radicals R 1 , R 2 , R 3 or R 4 also together form the group --CH = Can form CH-CH = CH; R 5 (C 1 -C 12 ) alkyl, which is optionally substituted with up to two (C 1 -C 4 ) alkoxy groups or with up to three halogen; Phenyl which can be substituted with up to two halogen atoms, a methyl, a nitro or a methoxy group; C y clo (C 3 -C 7 ) alkyl, (C 1 -C 4 ) alkoxy, (C 1 -C 4 ) alkoxycarbonyl, benzyloxy, phenoxy or -NR 7 R, in particular (C 1 -C 12 ) alkyl; R6 (C 1 -C 4 ) alkyl, CF 3 , CCl 3 , phenyl, chlorophenyl or methylphenyl; R 7 is hydrogen or (C 1 -C 4 ) alkyl; and R 8 are (C 1 -C 4 ) alkyl, phenyl, chlorophenyl, methylphenyl, amino, mono- or di (C 1 -C 4 ) alkylamino, and their optical isomers (if X ‡ Y), their acid addition salts and N- Oxides (if A is N). 2. Verfahren zur Herstellung von Verbindungen der Formel (I), dadurch gekennzeichnet, daß man die Amide der Formel (II)
Figure imgb0015
durch Wasserabspaltung cyclisiert und gewünschtenfalls die erhaltenen Verbindungen mit Z = Wasserstoff durch Alkylierung, Acylierung, Sulfonierung, Oxidation oder Salzbildung in andere Verbindungen der Formel I überführt.2. A process for the preparation of compounds of the formula (I), characterized in that the amides of the formula (II)
Figure imgb0015
 cyclized by elimination of water and, if desired, the compounds obtained with Z = hydrogen converted into other compounds of the formula I by alkylation, acylation, sulfonation, oxidation or salt formation. 3. Verwendung der Verbindungen der Formel (I) nach Anspruch 1 als Herbizide und Wachstumsregulatoren.3. Use of the compounds of formula (I) according to claim 1 as herbicides and growth regulators. 4. Herbizide und wachstumsregulierende Mittel, dadurch gekennzeichnet, daß sie eine Verbindung der allgemeinen Formel (I) nach Anspruch 1 enthalten.4. Herbicidal and growth-regulating agents, characterized in that they contain a compound of the general formula (I) according to Claim 1. 5. Verfahren zur Bekämpfung von unerwünschten Pflanzen, bzw. zur Wachstumsregulierung, dadurch gekennzeichnet, daß man eine wirksame Menge einer Verbindung der Formel (I) nach Anspruch 1 auf die zu behandelnde Anbaufläche bzw. die zu behandelnden Pflanzen appliziert.5. A method for controlling undesirable plants or for regulating growth, characterized in that an effective amount of a compound of the formula (I) according to claim 1 is applied to the cultivated area or the plants to be treated. 1. Verfahren zur Herstellung von Imidazolinonen der Formel (I)
Figure imgb0016
in welcher A N oder C-R 4; B Halogen-(C1-C2)alkyl wobei unter Halogen Fluor, Chlor und Brom, vorzugsweise Fluor und Chlor zu verstehen sind, (C1-C4) Alkoxymethyl, Cyanmethyl und Thiocyanatomethyl; X (C1-C4)Alkyl; Y (C1- C6) Alkyl, Cyclo( C3-C6)alkyl, (C2-C4)Alkenyl, (C 2-C4)Alkinyl, Phenyl oder Benzyl; X und Y zusammen mit dem Kohlenstoffatom, an das sie gebunden sind, eine gegebenenfalls durch -CH3 substituierte Spirocyclo(C3-C6)alkylgruppe; Z Wasserstoff,(C1-C4)Alkyl, welches durch (C1-C4)Alkoxycarbonyl substituiert sein kann, (C3-C4)Alkenyl, Propargyl, -CO-R5 oder -SO2-R6; Rl, R2, R3 und R4 unabhängig voneinander Wasserstoff, Halogen, (C1-C4)Alkyl, (C1-C6)Alkoxy, (C1-C6) Alkoxycarbonyl, Halogen-(C1-C2)alkyl, Nitro, Cyano, Phenoxy und Phenyl, das gegebenenfalls mit (C1-C4)Alkyl, (C1-C4)Alkoxy oder Halogen substituiert sein kann, wobei jeweils zwei o-ständige Reste R1, R 2, R 3 oder R4 auch gemeinsam die Gruppierung -CH=CH-CH=CH bilden können; R5 (C1-C12)Alkyl, das gegebenenfalls mit bis zu zwei (C1-C4)Alkoxygruppen oder mit bis zu drei Halogen substituiert ist; Phenyl, das mit bis zu zwei Halogenatomen, einer Methyl-, einer Nitro- oder einer Methoxygruppe substituiert sein kann; Cyclo(C3-C7)alkyl, (Cl-C4)Alkoxy, (C1-C4)Alkoxycarbonyl, Benzyloxy, Phenoxy oder -NR7R , insbesondere (C1-C12)Alkyl; R6 (C1-C4)Alkyl, CF3, CC13, Phenyl, Chlorphenyl oder Methylphenyl; R7 Wasserstoff oder (C1-C4)Alkyl; und R8 (C1-C4)Alkyl, Phenyl, Chlorphenyl, Methylphenyl, Amino, Mono- oder Di(Cl-C4)alkylamino, bedeuten, sowie deren optischen Isomere (falls X ‡ Y), ihre Säureadditionssalze und N-Oxide (für den Fall, daß A für N steht), dadurch gekennzeichnet, daß man die Amide der Formel (II)
Figure imgb0017
durch Wasserabspaltung cyclisiert und gewünschtenfalls die erhaltenen Verbindungen mit Z = Wasserstoff durch Alkylierung, Acylierung, Sulfonierung, Oxidation oder Salzbildung in andere Verbindungen der Formel (I) überführt. 1. Process for the preparation of imidazolinones of the formula (I)
Figure imgb0016
 in which AN or C - R 4 ; B halogen (C 1 -C 2 ) alkyl, where halogen means fluorine, chlorine and bromine, preferably fluorine and chlorine, (C 1 -C 4 ) alkoxymethyl, cyanomethyl and thiocyanatomethyl; X (C 1 -C 4 ) alkyl; Y (C 1 -C 6 ) alkyl, cyclo (C 3 -C 6 ) alkyl, (C 2 -C 4 ) alkenyl, ( C 2 -C 4 ) alkynyl, phenyl or benzyl; X and Y together with the carbon atom to which they are attached represent an optionally -CH 3 substituted spirocyclo (C 3 -C 6 ) alkyl group; Z is hydrogen, (C 1 -C 4) alkyl, which (C 1 -C 4) alkoxycarbonyl can be substituted by (C 3 -C 4) alkenyl, P ropargyl, -CO-R 5 or -SO 2 -R 6 ; R 1 , R 2 , R 3 and R 4 are independently hydrogen, Halogen, (C 1 -C 4 ) alkyl, (C 1 -C 6 ) alkoxy, (C 1 -C 6 ) alkoxycarbonyl, halogen (C 1 -C 2 ) alkyl, nitro, cyano, phenoxy and phenyl, which are optionally can be substituted with (C 1 -C 4 ) alkyl, (C 1 -C 4 ) alkoxy or halogen, where in each case two o-radicals R 1 , R 2 , R 3 or R 4 together also form the group --CH = CH -CH = CH can form; R 5 (C 1 -C 12 ) alkyl which is optionally substituted with up to two (C 1 -C 4 ) alkoxy groups or with up to three halogen; Phenyl which can be substituted with up to two halogen atoms, one methyl, one nitro or one methoxy group; C y c l o (C 3 -C 7 ) alkyl, (C 1 -C 4 ) alkoxy, (C 1 -C 4 ) alkoxycarbonyl, benzyloxy, phenoxy or -NR 7 R, in particular (C 1 -C 12 ) alkyl ; R 6 (C 1 -C 4 ) alkyl, CF 3 , CC1 3 , phenyl, chlorophenyl or methylphenyl; R 7 is hydrogen or (C 1 -C 4 ) alkyl; and R 8 is (C 1 -C 4 ) alkyl, phenyl, chlorophenyl, methylphenyl, amino, mono- or di (C 1 -C 4 ) alkylamino, and their optical isomers (if X ‡ Y), their acid addition salts and N- Oxides (in the event that A is N), characterized in that the amides of the formula (II)
Figure imgb0017
 cyclized by elimination of water and, if desired, the compounds obtained with Z = hydrogen converted into other compounds of the formula (I) by alkylation, acylation, sulfonation, oxidation or salt formation. 2. Verwendung der Verbindungen der Formel (I) nach Anspruch 1 als Herbizide und Wachstumsregulatoren.2. Use of the compounds of formula (I) according to claim 1 as herbicides and growth regulators. 3. Herbizide und wachstumsregulierende Mittel, dadurch gekennzeichnet, daß sie eine Verbindung der allgemeinen Formel (I) nach Anspruch 1 enthalten. 3rd Herbicidal and growth-regulating agents, characterized in that they contain a compound of the general formula (I) according to Claim 1. 4. Verfahren zur Bekämpfung von unerwünschten Pflanzen, bzw. zur Wachstumsregulierung, dadurch gekennzeichnet, daß man eine wirksame Menge einer Verbindung der Formel (I) nach Anspruch 1 auf die zu behandelnde Anbaufläche bzw. die zu behandelnden Pflanzen appliziert.4. A method for controlling undesirable plants or for regulating growth, characterized in that an effective amount of a compound of the formula (I) according to Claim 1 is applied to the cultivated area or the plants to be treated.
EP84113259A 1983-11-10 1984-11-03 Imidazolinones, process for their preparation and their use in plant ptotection Withdrawn EP0144748A3 (en)

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GB2174395A (en) * 1986-05-09 1986-11-05 American Cyanimid Co Herbicidal 2-(2-imidazolin-2-yl)pyridine derivatives
EP0270760A1 (en) * 1986-10-14 1988-06-15 Bayer Ag 2-(Oxo-5-imidazolin-2-yl)-pyridine derivatives
WO1991014679A1 (en) * 1990-03-20 1991-10-03 Sanofi Heterocyclic n-substituted derivatives, their preparation and thepharmaceutical compositions containing them
EP0519831A1 (en) * 1991-06-21 1992-12-23 Sanofi N-Substituted heterocyclic derivatives, their preparation, and pharmaceutical compositions containing them
AP405A (en) * 1991-12-20 1995-09-03 Bayer Sas Fungicidal 2-imidazolin-5-one and 2-imidazoline-5-thione derivatives.

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US4798619A (en) * 1980-06-02 1989-01-17 American Cyanamid Co. 2-(2-imidazolin-2-yl)-pyridines and quinolines and use of said compounds as herbicidal agents
GR861747B (en) * 1985-07-25 1986-09-23 Nissan Chemical Ind Ltd Pyridine derivatives process for their production and herbicidal compositions
CN86106435A (en) * 1985-09-24 1987-05-27 舍林股份公司 Imidazolinyl derivative, its preparation method and the preparation that contains this compounds with herbicide effect
EP0261705A1 (en) * 1986-08-25 1988-03-30 Shell Internationale Researchmaatschappij B.V. Herbicidal imidazolinyl benzoic acids and derivatives
EP0303863A3 (en) * 1987-08-17 1991-10-23 American Cyanamid Company Benzenesulfonyl carboxamide compounds, intermediate compounds and methods of preparation thereof and use of said compounds and intermediate compounds as herbicidal agents
US5034532A (en) * 1988-01-27 1991-07-23 American Cyanamid Company Method for the preparation of quinolyl and pyridyl substituted imidazolinones
US5062881A (en) * 1989-12-20 1991-11-05 American Cyanamid Company 2-(1-substituted-2-imidazolin-2-yl)benzoic and nicotinic acids and a method for their preparation
US5270317A (en) * 1990-03-20 1993-12-14 Elf Sanofi N-substituted heterocyclic derivatives, their preparation and the pharmaceutical compositions in which they are present
US5076832A (en) * 1990-07-20 1991-12-31 Ici Americas Inc. Certain 3-(substituted phenyl)-5-(substituted phenyl)-1-ethylimidazolidine-4-ones as herbicides
US5108485A (en) * 1990-08-31 1992-04-28 American Cyanamid Company Herbicidal 2-(2-imidazolin-2-yl)-benzazoles
FR2706456B1 (en) * 1993-06-18 1996-06-28 Rhone Poulenc Agrochimie Optically active derivatives of 2-imidazoline-5-ones and 2-imidazoline-5-thiones fungicides.
US6002016A (en) * 1991-12-20 1999-12-14 Rhone-Poulenc Agrochimie Fungicidal 2-imidazolin-5-ones and 2-imidazoline-5-thiones
US6008370A (en) * 1992-11-25 1999-12-28 Rhone-Poulenc Agrochimie Fungicidal-2-alkoxy/haloalkoxy-1-(mono- or disubstituted)amino-4,4-disubstituted-2-imidazolin-5-ones

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Cited By (7)

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GB2174395A (en) * 1986-05-09 1986-11-05 American Cyanimid Co Herbicidal 2-(2-imidazolin-2-yl)pyridine derivatives
EP0270760A1 (en) * 1986-10-14 1988-06-15 Bayer Ag 2-(Oxo-5-imidazolin-2-yl)-pyridine derivatives
WO1991014679A1 (en) * 1990-03-20 1991-10-03 Sanofi Heterocyclic n-substituted derivatives, their preparation and thepharmaceutical compositions containing them
EP0454511A1 (en) * 1990-03-20 1991-10-30 Sanofi N-substituted heterocycle derivatives, their preparation, compositions containing them
EP0519831A1 (en) * 1991-06-21 1992-12-23 Sanofi N-Substituted heterocyclic derivatives, their preparation, and pharmaceutical compositions containing them
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AP405A (en) * 1991-12-20 1995-09-03 Bayer Sas Fungicidal 2-imidazolin-5-one and 2-imidazoline-5-thione derivatives.

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